Science

Monday, 2 February 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

Did you know?

Earth
The Earth has the only natural satellite - the Moon.
The moon is relatively large for a natural satellite. Its diameter is approximately ¼ the diameter of the Earth. It orbits the Earth at an average distance of 384.400 km.
NASA
In 1973 NASA launched the Skylab mission.
Its purpose was to set up the first American space station. Skylab successfully operated from May 14th, 1973 to July 11th, 1979, when it disintegrated into the atmosphere.
Milky Way
Until 1920, most astronomers believed that the Milky Way contained all the stars in the universe.
Only observations made by Edwin Hubble made humanity realize that it is only one of many galaxies.
Milky Way
The Milky Way's closest neighbor is the Canis Major Dwarf.
This dwarf galaxy is located 42.000 years ago. light years from the center of our galaxy and 25 thou ...
Brain
There are no nerve receptors in the brain that register pain, so it does not feel it.
Graphene
Graphene has the potential to replace silicon in many applications.
Graphene can be used to create microprocessors a thousand times more efficient than those we know to ...
Deimos
Deimos was discovered by American astronomer Asaph Hall on August 12, 1877, through a telescope at the US Naval Observatory.
It was not discovered accidentally, the astronomer conducted observations precisely to find the planet's natural satellites.
Large Magellanic Cloud
It is located in the constellation of Dorado and Mensa.
Tears
Tears are made up of three layers.
Oily layer–smoothens the tear’s surface and prevents evaporation of other layers Mucous layer–allow ...
Phobos
Phobos is a very small moon. Its dimensions are 26.8 x 21 x 18.4 km.